Telefonaktiebolaget Lm Ericsson (publ)

Björn Thors

Torbjörn Wigren

Christer Törnevik

Anders Furuskär

Yuan Wang

Henrik Asplund

Eliane Semaan

Lars G Josefsson

Patrik Persson

Yali Pei

Gustav Larson

Christer TÖRNEVIK

Davide Colombi

Lars Josefsson

Methods, apparatus and computer programs are disclosed for controlling the output of a transmission point. One embodiment provides a method for controlling the output of a transmission point for a wireless communications network. The method includes determining an average output power of the transmission point, in a particular direction, over a period of time, comparing the average output power to an output power reference value, and allocating data, to be transmitted by the transmission point in the particular direction to one or more wireless devices, to a pool of radio resources. The pool of radio resources is adjusted as a function of the comparison between the average output power and the output power reference value.

Controlling transmitter output

Disclosed are methods and apparatuses. The method implemented at a wireless device may comprise computing an average power for a bin covering a portion of a total solid angle covered by an antenna array of the wireless device by averaging a momentary power for the bin over a time period, wherein the momentary power is computed based on respective scheduled power of at least one beamforming transmission and respective antenna gain of the at least one beamforming transmission in the bin (). The method may further comprise performing a back-off power feedback control for the bin based on the computed average power ().

Method and apparatus for power control

A method performed by a first communication device for managing beamforming by a second communication device for transmission of a signal. The first and second communication devices operate in a wireless communications network having a zone in which a radio frequency electromagnetic field strength is required by a regulation to be below a threshold. The first communication device adjusts at least one of an output power and a beam shape in the beamforming. The adjusting is such that the radio frequency electromagnetic field strength in the zone for the output power and the beam shape in the beamforming is below the threshold. The first communication device initiates transmission of the signal to a third communication device operating in the wireless communications network using beamforming with the adjusted at least one of the output power and the beam shape.

First communication device and methods performed thereby for managing beamforming by a second communication device for transmission of a signal

A method and an antenna arrangement are disclosed for reducing the antenna radar cross section for an externally illuminating radar source. A radar pulse is transmitted with the antenna arrangement fully matched to achieve a lowest possible power loss of the pulse. At all other times the antenna will be poorly matched and thereby will act as a low radar cross section. The reduced radar cross section leads to an antenna gain reduction, which most often can be accepted since competing noise is reduced as much as the useful signal. It is further suggested that the range gate of the receiver and the transmitter pulse control the antenna. Thus, the antenna is 'fully opened' during the transmitting pulse and may be partly or 'trade-off' matched during range gate reception. In the interval of not transmitting or receiving, the antenna will present a low radar cross section.

Dynamic antenna

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Rättvik, Sweden

Björn Thors